Author/Authors :
Yokoyama، نويسنده , , Yoshihiko and Tokunaga، نويسنده , , Hitoo and Yavari، نويسنده , , Alain Reza and Yamada، نويسنده , , Masahiro and Yamasaki، نويسنده , , Tohru and Fujita، نويسنده , , Kazutaka and Inoue، نويسنده , , Akihisa، نويسنده ,
Abstract :
The Zr70Ni16Cu6Al8 bulk metallic glass (BMG) was tested in tension mode using high-speed imaging in order to monitor the viscous flow inside a sliding shear band. Assuming the shear band thickness to be 15 nm, we estimated the shear viscosity to be ∼3.8 × 103 Pa s. The apparent temperature in the shear band was estimated to reach approximately 852 K on the basis of the relationship between the viscosity and the strain rate in the supercooled liquid region and was found to be considerably lower than the melting temperature (1293 K).
Keywords :
B. Glasses , metallic , F. Mechanical testing , C. Melting
